Open AccessPest survey card on Pantoea stewartii subsp. stewartii
Author(s) -
Gaag Dirk Jan,
Schenk Martijn,
Delbianco Alice,
Vos Sybren
Publication year - 2020
Publication title -
efsa supporting publications
Language(s) - English
Resource type - Journals
ISSN - 2397-8325
DOI - 10.2903/sp.efsa.2020.en-1878
Subject(s) - pest analysis , quarantine , context (archaeology) , european union , phytophthora ramorum , plant quarantine , business , biology , ecology , horticulture , marketing , paleontology , economic policy , phytophthora
This pest survey card was prepared in the context of the EFSA mandate on plant pest surveillance (M‐2017‐0137), at the request of the European Commission. Its purpose is to assist the Member States in preparing their survey activities for Pantoeastewartii subsp . stewartii using a statistically sound and risk‐based pest survey approach. Pantoeastewartii subsp . stewartii is a Union quarantine pest and the causal agent of Stewart's disease in maize crops. Maize is the only relevant host and P.stewartii subsp. stewartii is expected to be able to become established in all maize growing areas of the EU.It is subject to specific measures to prevent entry of the pest via maize seeds, which are considered to be the main pathway for the introduction and spread of the bacterium. Natural spread in the EU through insect vectors is currently uncertain. Surveys in all Member States should be aimed at substantiating pest freedom and should take place once per year at a time when symptoms can be observed in maize crops. The detection should be performed through visual examination and, when symptomatic leaves are observed, they should be collected for laboratory testing. It is recommended that identification of P. stewartii subsp. stewartii is done by performing two independent identification methods.